Terms for Weeds Your Lake Bottom Blanket Prevents

A weed is a plant that is considered undesirable, unattractive, or troublesome, especially one growing where it is not wanted.


When I was a kid, we called it seaweed. My dad tried to “Get rid of seaweed” every way he could. All the neighbors called it seaweed, too.

Seaweed actually refers to aquatic plants that grow in saltwater, like seas and oceans — not freshwater lakes.  Still, seaweed is used a lot — and for good reason. I can’t imagine my dad ever saying, “I’m gonna get rid of those vascular, freshwater aquatic plants.” Just sounds weird…

So, what do you call those things growing in your lake?

Lake Weeds

This may be the most commonly used. Saying “lake weeds” is shorter than saying “aquatic weeds.” And it gets to the point, referring to, “weeds in lakes.”

Aquatic Weeds

This is used a lot, too. It’s not quite as accurate as “lake weeds,” because it refers to plants growing in either saltwater or fresh water. (It does sound classier though).

Water Weeds

I live in Michigan and the term, “water weeds” is seldom used. Apparently, water weeds is a more common term in New England. Whenever I get an email asking about, how to control “water weeds,” it’s from out east.

Aquatic Plants

This is a fairly accurate term, and the least used. The word “weed” means an unwanted “plant.” As I said earlier, aquatic refers to both salt and fresh water. So, to be exact, the best term to use is “freshwater aquatic plants.” But who’s going to say that when “seaweed” will do?

Algae (they’re not really plants)

The gooey, stringy stuff that floats on your lake surface is algae. Algae is often called a lake weed, but algae isn’t an aquatic plant — it’s not even classified as a “plant.” It’s quite different.

Stranger still, some algae, like chara and starry stonewort, look like regular aquatic plants, rooted in lake bottoms — but they’re not true lake weeds. Most people don’t care for how algae looks. So, it gets called things like “pond scum” or worse.

If you would like to learn more about LakeMat’s lake bottom blanket and how it prevents weeds, do not hesitate to contact us!